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Matthew Wilcox (Oracle) f9a6f9a85a minmax: add in_range() macro 
[ Upstream commit f9bff0e318 ]

Patch series "New page table range API", v6.

This patchset changes the API used by the MM to set up page table entries.
The four APIs are:

    set_ptes(mm, addr, ptep, pte, nr)
    update_mmu_cache_range(vma, addr, ptep, nr)
    flush_dcache_folio(folio)
    flush_icache_pages(vma, page, nr)

flush_dcache_folio() isn't technically new, but no architecture
implemented it, so I've done that for them.  The old APIs remain around
but are mostly implemented by calling the new interfaces.

The new APIs are based around setting up N page table entries at once.
The N entries belong to the same PMD, the same folio and the same VMA, so
ptep++ is a legitimate operation, and locking is taken care of for you.
Some architectures can do a better job of it than just a loop, but I have
hesitated to make too deep a change to architectures I don't understand
well.

One thing I have changed in every architecture is that PG_arch_1 is now a
per-folio bit instead of a per-page bit when used for dcache clean/dirty
tracking.  This was something that would have to happen eventually, and it
makes sense to do it now rather than iterate over every page involved in a
cache flush and figure out if it needs to happen.

The point of all this is better performance, and Fengwei Yin has measured
improvement on x86.  I suspect you'll see improvement on your architecture
too.  Try the new will-it-scale test mentioned here:
https://lore.kernel.org/linux-mm/20230206140639.538867-5-fengwei.yin@intel.com/
You'll need to run it on an XFS filesystem and have
CONFIG_TRANSPARENT_HUGEPAGE set.

This patchset is the basis for much of the anonymous large folio work
being done by Ryan, so it's received quite a lot of testing over the last
few months.

This patch (of 38):

Determine if a value lies within a range more efficiently (subtraction +
comparison vs two comparisons and an AND).  It also has useful (under some
circumstances) behaviour if the range exceeds the maximum value of the
type.  Convert all the conflicting definitions of in_range() within the
kernel; some can use the generic definition while others need their own
definition.

Link: https://lkml.kernel.org/r/20230802151406.3735276-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230802151406.3735276-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eliav Farber <farbere@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-02 13:40:41 +02:00
..
9p fs/9p: fix uninitialized values during inode evict 2024-11-22 15:37:34 +01:00
adfs fs: Convert block_read_full_page() to block_read_full_folio() 2022-05-09 16:21:44 -04:00
affs affs: don't write overlarge OFS data block size fields 2025-04-10 14:33:38 +02:00
afs afs: Fix potential null pointer dereference in afs_put_server 2025-10-02 13:40:41 +02:00
autofs autofs: fix memory leak of waitqueues in autofs_catatonic_mode 2023-09-23 11:10:59 +02:00
befs befs: Convert befs_symlink_read_folio() to use a folio 2022-08-02 12:34:03 -04:00
bfs fs: Convert block_read_full_page() to block_read_full_folio() 2022-05-09 16:21:44 -04:00
btrfs minmax: add in_range() macro 2025-10-02 13:40:41 +02:00
cachefiles cachefiles: Fix the incorrect return value in __cachefiles_write() 2025-07-24 08:51:51 +02:00
ceph ceph: fix possible integer overflow in ceph_zero_objects() 2025-07-06 10:57:56 +02:00
coda coda: Avoid partial allocation of sig_inputArgs 2023-03-10 09:33:52 +01:00
configfs configfs: Do not override creating attribute file failure in populate_attrs() 2025-06-27 11:07:25 +01:00
cramfs fs/cramfs/inode.c: initialize file_ra_state 2023-03-10 09:34:09 +01:00
crypto fscrypt: Don't use problematic non-inline crypto engines 2025-08-28 16:26:10 +02:00
debugfs debugfs: fix automount d_fsdata usage 2024-01-20 11:50:04 +01:00
devpts fsnotify: fix fsnotify hooks in pseudo filesystems 2022-01-24 14:17:02 +01:00
dlm dlm: make tcp still work in multi-link env 2025-06-04 14:40:05 +02:00
ecryptfs fs: Create a generic is_dot_dotdot() utility 2024-10-17 15:21:17 +02:00
efivarfs efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare 2025-09-04 15:26:29 +02:00
efs efs: Convert efs symlinks to read_folio 2022-05-09 16:21:45 -04:00
erofs erofs: address D-cache aliasing 2025-08-15 12:04:51 +02:00
exfat exfat: fix the infinite loop in exfat_find_last_cluster() 2025-04-10 14:33:37 +02:00
exportfs exportfs: use pr_debug for unreachable debug statements 2024-03-06 14:45:15 +00:00
ext2 minmax: add in_range() macro 2025-10-02 13:40:41 +02:00
ext4 minmax: add in_range() macro 2025-10-02 13:40:41 +02:00
f2fs f2fs: fix to avoid out-of-boundary access in dnode page 2025-08-28 16:26:15 +02:00
fat fat: fix uninitialized variable 2024-10-22 15:56:43 +02:00
freevxfs freevxfs: Convert vxfs_immed_read_folio() to use a folio 2022-08-02 12:34:03 -04:00
fscache netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING 2024-12-14 19:53:15 +01:00
fuse fuse: prevent overflow in copy_file_range return value 2025-09-19 16:29:57 +02:00
gfs2 gfs2: move msleep to sleepable context 2025-06-27 11:07:25 +01:00
hfs hfs: fix not erasing deleted b-tree node issue 2025-08-28 16:25:51 +02:00
hfsplus hfsplus: don't use BUG_ON() in hfsplus_create_attributes_file() 2025-08-28 16:25:51 +02:00
hostfs hostfs: move from strlcpy with unused retval to strscpy 2022-09-19 22:46:25 +02:00
hpfs hpfs: Convert symlinks to read_folio 2022-05-09 16:21:45 -04:00
hugetlbfs mm/hugetlb: fix folio is still mapped when deleted 2025-10-02 13:40:41 +02:00
iomap iomap: avoid avoid truncating 64-bit offset to 32 bits 2025-01-23 17:17:12 +01:00
isofs isofs: Verify inode mode when loading from disk 2025-07-24 08:51:49 +02:00
jbd2 jbd2: prevent softlockup in jbd2_log_do_checkpoint() 2025-08-28 16:26:07 +02:00
jffs2 jffs2: check jffs2_prealloc_raw_node_refs() result in few other places 2025-06-27 11:07:36 +01:00
jfs jfs: upper bound check of tree index in dbAllocAG 2025-08-28 16:26:00 +02:00
kernfs kernfs: Fix UAF in polling when open file is released 2025-09-19 16:29:57 +02:00
lockd nfsd: stop setting ->pg_stats for unused stats 2024-08-19 06:00:04 +02:00
minix vfs: open inside ->tmpfile() 2022-09-24 07:00:00 +02:00
netfs netfs: Only call folio_start_fscache() one time for each folio 2023-10-06 14:56:32 +02:00
nfs NFSv4/flexfiles: Fix layout merge mirror check. 2025-09-19 16:29:56 +02:00
nfs_common nfs: Fix kerneldoc warning shown up by W=1 2021-10-04 22:02:17 +01:00
nfsd NFSD: detect mismatch of file handle and delegation stateid in OPEN op 2025-08-28 16:25:48 +02:00
nilfs2 nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/* 2025-09-25 10:58:52 +02:00
nls fs/nls: make load_nls() take a const parameter 2023-09-13 09:42:22 +02:00
notify fs: relax assertions on failure to encode file handles 2025-09-09 18:54:21 +02:00
ntfs - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
ntfs3 fs/ntfs3: correctly create symlink for relative path 2025-08-28 16:25:51 +02:00
ocfs2 ocfs2: fix recursive semaphore deadlock in fiemap call 2025-09-19 16:29:56 +02:00
omfs fs: omfs: Use flexible-array member in struct omfs_extent 2025-07-06 10:58:03 +02:00
openpromfs openpromfs: finish conversion to the new mount API 2024-06-12 11:03:03 +02:00
orangefs fs/orangefs: use snprintf() instead of sprintf() 2025-08-28 16:25:59 +02:00
overlayfs fs: relax assertions on failure to encode file handles 2025-09-09 18:54:21 +02:00
proc proc: fix type confusion in pde_set_flags() 2025-09-19 16:29:56 +02:00
pstore pstore/blk: trivial typo fixes 2025-02-21 13:48:53 +01:00
qnx4 fs: Convert block_read_full_page() to block_read_full_folio() 2022-05-09 16:21:44 -04:00
qnx6 fs/qnx6: delete unnecessary checks before brelse() 2022-09-11 21:55:07 -07:00
quota quota: flush quota_release_work upon quota writeback 2024-12-14 19:54:10 +01:00
ramfs shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs 2023-07-19 16:22:11 +02:00
reiserfs reiserfs: fix uninit-value in comp_keys 2024-08-29 17:30:20 +02:00
romfs romfs: Convert romfs to read_folio 2022-05-09 16:21:46 -04:00
smb smb: server: don't use delayed_work for post_recv_credits_work 2025-10-02 13:40:37 +02:00
squashfs squashfs: fix memory leak in squashfs_fill_super 2025-08-28 16:26:13 +02:00
sysfs fs: sysfs: Fix reference leak in sysfs_break_active_protection() 2024-04-27 17:07:16 +02:00
sysv sysv: don't call sb_bread() with pointers_lock held 2024-04-13 13:05:05 +02:00
tracefs tracefs: Add missing lockdown check to tracefs_create_dir() 2023-09-23 11:11:12 +02:00
ubifs ubifs: skip dumping tnc tree when zroot is null 2025-02-21 13:49:21 +01:00
udf udf: Verify partition map count 2025-08-28 16:25:51 +02:00
ufs minmax: add in_range() macro 2025-10-02 13:40:41 +02:00
unicode Revert "unicode: Don't special case ignorable code points" 2024-12-14 19:54:50 +01:00
vboxsf vboxsf: fix building with GCC 15 2025-03-28 21:58:51 +01:00
verity fsverity: skip PKCS#7 parser when keyring is empty 2023-09-13 09:43:03 +02:00
xfs xfs: do not propagate ENODATA disk errors into xattr code 2025-09-04 15:26:31 +02:00
zonefs zonefs: Improve error handling 2024-02-23 09:12:45 +01:00
aio.c fs/aio: Check IOCB_AIO_RW before the struct aio_kiocb conversion 2024-04-03 15:19:42 +02:00
anon_inodes.c fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass 2025-07-17 18:32:10 +02:00
attr.c attr: block mode changes of symlinks 2023-09-23 11:11:10 +02:00
bad_inode.c vfs: open inside ->tmpfile() 2022-09-24 07:00:00 +02:00
binfmt_elf.c binfmt_elf: Move brk for static PIE even if ASLR disabled 2025-05-22 14:09:59 +02:00
binfmt_elf_fdpic.c binfmt: Fix whitespace issues 2025-05-22 14:09:58 +02:00
binfmt_elf_test.c binfmt_elf: Introduce KUnit test 2022-03-03 20:38:56 -08:00
binfmt_flat.c binfmt_flat: Fix integer overflow bug on 32 bit systems 2025-02-21 13:49:39 +01:00
binfmt_misc.c binfmt_misc: cleanup on filesystem umount 2024-08-29 17:30:30 +02:00
binfmt_script.c Merge branch 'akpm' (patches from Andrew) 2020-06-04 19:18:29 -07:00
buffer.c fs/buffer: fix use-after-free when call bh_read() helper 2025-08-28 16:26:14 +02:00
char_dev.c chardev: fix error handling in cdev_device_add() 2022-12-31 13:32:41 +01:00
compat_binfmt_elf.c binfmt_elf: Introduce KUnit test 2022-03-03 20:38:56 -08:00
coredump.c coredump: hand a pidfd to the usermode coredump helper 2025-06-04 14:40:25 +02:00
d_path.c d_path.c: typo fix... 2022-08-20 11:34:33 -04:00
dax.c fsdax: dax_unshare_iter needs to copy entire blocks 2024-11-08 16:26:42 +01:00
dcache.c fs: better handle deep ancestor chains in is_subdir() 2024-07-25 09:49:18 +02:00
direct-io.c block: remove PSI accounting from the bio layer 2022-09-20 08:24:38 -06:00
drop_caches.c fs: drop_caches: fix skipping over shadow cache inodes 2021-09-03 09:58:10 -07:00
eventfd.c eventfd: prevent underflow for eventfd semaphores 2023-09-13 09:42:27 +02:00
eventpoll.c eventpoll: Fix semi-unbounded recursion 2025-08-28 16:25:49 +02:00
exec.c binfmt: Fix whitespace issues 2025-05-22 14:09:58 +02:00
fcntl.c fs: Fix file_set_fowner LSM hook inconsistencies 2024-10-17 15:21:23 +02:00
fhandle.c do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak 2024-03-26 18:20:27 -04:00
file.c alloc_fdtable(): change calling conventions. 2025-08-28 16:26:19 +02:00
file_table.c fs: fix proc_handler for sysctl_nr_open 2025-02-21 13:48:53 +01:00
filesystems.c fs/filesystems: Fix potential unsigned integer underflow in fs_name() 2025-06-27 11:07:23 +01:00
fs-writeback.c fs: writeback: fix use-after-free in __mark_inode_dirty() 2025-09-09 18:54:12 +02:00
fs_context.c vfs, security: Fix automount superblock LSM init problem, preventing NFS sb sharing 2023-09-13 09:42:28 +02:00
fs_parser.c ext4: journal_path mount options should follow links 2023-01-07 11:11:59 +01:00
fs_pin.c switch the remnants of releasing the mountpoint away from fs_pin 2019-07-16 22:52:37 -04:00
fs_struct.c vfs: Use sequence counter with associated spinlock 2020-07-29 16:14:27 +02:00
fs_types.c fs: common implementation of file type 2019-01-21 17:48:13 +01:00
fsopen.c uninline may_mount() and don't opencode it in fspick(2)/fsopen(2) 2022-05-19 23:25:10 -04:00
init.c init: handle idmapped mounts 2021-01-24 14:27:19 +01:00
inode.c fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name 2024-12-14 19:53:13 +01:00
internal.h nfs: use vfs setgid helper 2023-08-30 16:11:10 +02:00
ioctl.c lsm: new security_file_ioctl_compat() hook 2024-01-31 16:17:00 -08:00
Kconfig nfs: add missing selections of CONFIG_CRC32 2025-04-25 10:43:52 +02:00
Kconfig.binfmt Xtensa updates for v6.1 2022-10-10 14:21:11 -07:00
kernel_read_file.c fs/kernel_read_file: allow to read files up-to ssize_t 2022-06-16 19:58:21 -07:00
libfs.c better lockdep annotations for simple_recursive_removal() 2025-08-28 16:25:51 +02:00
locks.c filelock: Fix fcntl/close race recovery compat path 2024-07-27 11:32:19 +02:00
Makefile smb: move client and server files to common directory fs/smb 2023-06-28 11:12:40 +02:00
mbcache.c ext4: fix deadlock due to mbcache entry corruption 2023-01-07 11:12:02 +01:00
mount.h switch try_to_unlazy_next() to __legitimize_mnt() 2022-07-05 16:18:21 -04:00
mpage.c Folio changes for 6.0 2022-08-03 10:35:43 -07:00
namei.c fuse: don't truncate cached, mutated symlink 2025-03-28 21:58:53 +01:00
namespace.c use uniform permission checks for all mount propagation changes 2025-08-28 16:26:14 +02:00
no-block.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
nsfs.c dynamic_dname(): drop unused dentry argument 2022-08-20 11:34:04 -04:00
open.c openat2: explicitly return -E2BIG for (usize > PAGE_SIZE) 2024-11-01 01:56:06 +01:00
pipe.c fs/pipe: Fix lockdep false-positive in watchqueue pipe_write() 2024-04-10 16:28:30 +02:00
pnode.c pnode: terminate at peers of source 2023-01-04 11:29:01 +01:00
pnode.h mount: fix mounting of detached mounts onto targets that reside on shared mounts 2021-03-08 15:18:43 +01:00
posix_acl.c - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
proc_namespace.c vfs: escape hash as well 2022-06-28 13:58:05 -04:00
read_write.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
readdir.c Change calling conventions for filldir_t 2022-08-17 17:25:04 -04:00
remap_range.c - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
select.c hrtimer: Use and report correct timerslack values for realtime tasks 2025-03-28 21:58:48 +01:00
seq_file.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
signalfd.c Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2022-01-17 05:49:30 +02:00
splice.c mm: merge folio_has_private()/filemap_release_folio() call pairs 2024-01-10 17:10:31 +01:00
stack.c sched/rt, fs: Use CONFIG_PREEMPTION 2019-12-08 14:37:36 +01:00
stat.c vfs: support STATX_DIOALIGN on block devices 2022-09-11 19:47:12 -05:00
statfs.c statfs: enforce statfs[64] structure initialization 2023-05-24 17:32:51 +01:00
super.c fs: don't allow non-init s_user_ns for filesystems without FS_USERNS_MOUNT 2024-08-03 08:49:53 +02:00
sync.c riscv: compat: syscall: Add compat_sys_call_table implementation 2022-04-26 13:36:25 -07:00
sysctls.c fs: move namespace sysctls and declare fs base directory 2022-01-22 08:33:36 +02:00
timerfd.c timerfd: Provide timerfd_resume() 2021-08-10 17:57:22 +02:00
userfaultfd.c mm/uffd: fix vma operation where start addr cuts part of vma 2025-06-27 11:07:04 +01:00
utimes.c utimes: handle idmapped mounts 2021-01-24 14:27:18 +01:00
xattr.c fs: don't audit the capability check in simple_xattr_list() 2022-12-31 13:31:55 +01:00